<template>
  <div class="icons">
    <swiper :options="swiperOption">
      <swiper-slide v-for="(page, index) of pages" :key="index">
        <div
          class="icon"
          v-for="item of page"
          :key="item.id"
        >
          <div class="icon-img">
            <img class="icon-img-content" :src="item.imgUrl" />
          </div>
          <p class="icon-desc">{{item.desc}}</p>
        </div>
      </swiper-slide>
    </swiper>
  </div>
</template>

<script>
export default {
  name: 'HomeIcons',
  props: {
    list: Array
  },
  data () {
    return {
      swiperOption: {
        autoplay: false
      }
    }
  },
  computed: {
    pages () {
      const pages = []
      this.list.forEach((item, index) => {
        const page = Math.floor(index / 8)
        if (!pages[page]) {
          pages[page] = []
        }
        pages[page].push(item)
      })
      return pages
    }
  }
}
</script>

<style lang="stylus" scoped>
  @import "~styles/varibles.styl";
  @import "~styles/mixins.styl";
  .icons .swiper-container{
    height: 0;
    padding-bottom: 50%;
    overflow: hidden;
    margin-top: -2px;
    font-size: 12px;
  }
  .icons {
    margin-top: .1rem;
  }
  .icon {
    position: relative;
    width: 25%;
    float: left;
    height: 0;
    padding-bottom: 25%;
    overflow: hidden;
  }
  .icon-img {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: .44rem;
    box-sizing: border-box;
    padding: .1rem;
  }
  .icon-img-content {
    height: 100%;
    display: block;
    margin: 0 auto;
  }
  .icon-desc {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: .44rem;
    line-height: .44rem;
    color: $darkTextColor;
    text-align: center;
    ellipsis()
  }
</style>
